num1 = eval(input())
calculate = input()
num2 = eval(input())
if calculate == "+":
    print("{} {} {} = {}".format(num1, calculate, num2, num1 + num2))
elif calculate == "-":
    print(num1 - num2)
elif calculate == "*":
    print(num1 * num2)
elif calculate == "/":
    if num2 == 0:
        print("除数不能为0")
    else:
        print(num1 / num2)
